 You should check this page frequently (i.e. daily) for updated information.
 All course materials (quizzes and quiz solutions, homework assignments and solutions, exam information, practice problems, etc.) are posted on PolyLearn.
 This schedule may be adjusted as necessary!
 Do the recommended practice problems as soon as possible after class! This is the best way to ensure that you are mastering the material. Although these problems are not to be turned in, they provide important practice for the weekly quizzes. Answers to all of the textbook exercises are in the back of the book.
 All written assignments are due at the start of class. No late assignments will be accepted, but your lowest quiz/assignment score will be dropped.
Date  Quiz/Assignment  Topics Covered  Recommended Practice Problems Not to be turned in 
Monday January 6 
Introduction to Math 242 1.2: Solutions of Some Differential Equations Read Sections 1.11.4 
1.2: 5, 6, 9, 15 1.3: 8, 11, 15, 19, 26, 28 

Tuesday January 7 
Introduction to Differential Equations assignment due  1.1: Direction Fields 2.2: Separable Differential Equations 
1.1: 110, 1520, 23 Use one of the direction field plotters posted on PolyLearn (in the Supplemental Notes and Resources section) to generate direction fields. Make sure that you can construct direction fields both by hand and using technology. 2.2: 18, 15, 27 
Thursday January 9 
Direction Fields assignment due  Introduction to the Method of Substitution 2.2: Homogeneous Differential Equations 
2.2: 32 
Friday January 10 
2.1: Linear Equations; Method of Integrating Factors  2.1: 1, 6, 8, 11, 14, 16, 18, 21, 24, 3447  
Monday January 13 
Inclass Assignment on Substitution Methods and Bernoulli Equations  2.4: 29, 30  
Tuesday January 14 
Quiz 1 on 1.1, 1.2, 1.3, 2.1, 2.2, Homogeneous DEs  
Thursday January 16 
Substitution Methods assignment due  2.6: Exact Equations and Integrating Factors  2.6: 113, 15 
Friday January 17 
Inclass Assignment on Integrating Factors  2.6: 2532  
Monday January 20 
NO CLASS  
Tuesday January 21 
Quiz 2 on 2.6, Substitution Methods, Bernoulli Equations  Reducible SecondOrder DEs  Ch. 2 Miscellaneous Problems (p. 134135): 3641, 48, 50, 51 
Thursday Jaunary 23 
Reducible SecondOrder DEs 2.4: Differences Between Linear and Nonlinear Equations The Existence and Uniqueness Theorem 
Ch. 2 Miscellaneous Problems (p. 134135): 4247, 49 2.4: 112, 2326 

Friday January 24 
2.7: Numerical Approximations Euler's Method 
2.7: 1  
Monday January 27 
Review  
Tuesday January 28 
Exam 1  
Thursday January 30 
Go over Exam 1  
Friday January 31 
Introduction to Ch. 3  
Monday February 3 
3.1: Homogeneous Equations with Constant Coefficients  3.1: 1, 7, 9, 15, 17, 21, 23, 27  
Tuesday February 4 
3.2: Solutions of Linear Homogeneous Equations; The Wronskian  3.2: 7, 11, 13, 15  
Thursday February 6 
3.2: Solutions of Linear Homogeneous Equations; The Wronskian  3.2: 3, 5, 11, 13, 15, 20, 21, 23, 24, 27, 28, 32, 33, 33, 36  
Friday February 7 
3.3: Complex Roots of the Characteristic Equation  3.3: 727, 28, 29  
Monday February 10 
3.4: Repeated Roots of the Characteristic Equation  3.4: 114, 19, 20  
Tuesday February 11 
Quiz 3 on 3.13.3  
Thursday February 13 
Reduction of Order  3.4: 2330  
Friday February 14 
3.5: Method of Undetermined Coefficients  3.5: 117 odd  
Monday February 17 
NO CLASS  
Tuesday February 18 
Quiz 4 on 3.4, Reduction of Order, 3.5  
Thursday February 20 
Eigenvalue and Endpoint Problems See textbook section posted in "Supplemental Notes and Resources" section in PolyLearn 

Friday February 21 
Eigenvalue and Endpoint Problems See textbook section posted in "Supplemental Notes and Resources" section in PolyLearn Euler Equations 
Eigenvalue and Endpoint Problems #16, 9 (problems and solutions posted in "Supplemental Notes and Resources" section in PolyLearn) 3.3: 36, 38, 39, 41 

Monday February 24 
Euler Equations 4.1: General Theory of nth Order Linear Equations 
3.3: 35, 37, 40, 42 3.4: 4146 4.1: 117 odd, 19, 2124 (use the formula from problem 20), 2628 

Tuesday February 25 
Inclass assignment on 4.2, 4.3  4.2: Homogeneous Equations with Constant Coefficients 4.3: Method of Undetermined Coefficients 
4.2: 1, 2, 5, 1123 odd, 29, 31, 35, 38ab 4.3: 117 odd 
Thursday February 27 
Quiz 5 on Euler Equations, Eigenvalue and Endpoint Problems, 4.1  
Friday February 28 
4.2, 4.3 assignment due  7.1: Introduction to Systems of First Order Linear Equations 7.2, 7.3: Review of Linear Algebra 
7.1: 7, 812 (a), (b), 15 7.2: 1, 2, 3, 10, 13, 15, 21, 22, 24 7.3: 1, 3, 7, 9, 11, 17, 19, 23, 31 
Monday March 3 
Review  
Tuesday March 4 
Exam 2  
Thursday March 6 
7.5: Homogeneous Linear Systems with Constant Coefficients  7.5: 1a, 5a, 11, 13, 15, 19, 20  
Friday March 7 
7.5: Homogeneous Linear Systems with Constant Coefficients 7.6: Complex Eigenvalues 
7.5: 1a, 5a, 11, 13, 15, 19, 20  
Monday March 10 
7.6: Complex Eigenvalues  7.6: 1a, 3a, 5a, 7a, 9  
Tuesday March 11 
Quiz 6 on 7.5, 7.6  
Thursday March 13 
7.8: Repeated Eigenvalues  7.8: 1c, 2c, 3c, 5c, 7a, 8a  
Friday March 14 
Review 